Diagnosis of the floristic diversity of Ain Skhouna (Steppe West-Algerian)
Barry JP. 1988. Approach ecological of the Arid Regions of Africa. University of Nice. ISS to Nouakc hott pp. 107.
Braun-Blanquet J. 1951.The plant communities of the Mediterranean France. NRS. Paris 297 p.
CORNET A. 2000. Desertification: an environmental problem, a problem of development. Invited Conference, La Londe les Maures, 2000 France.
Cornet A. 2002. Desertification at the crossroads of environmental and development: a problem that concerns us. Summit for sustainable development, Johannesburg 2002, 93-130.
Daget PH. 1980. On the biological types as an adaptive strategy. (Cases of) therophytes). In research of theoretical ecology, adaptive strategies. Paris 89‐114.
Dahmani-Megrerouche M. 1997. Green oak in Algeria. Syntaxonomy, phytosociology and stand dynamics. Thesis doct. of science. Univ. Houari Boumediene. Algiers 329 P + appendices.
Danin A. Orshan G. 1990. The distribution of Raunkiaer life forms in Israel in relation to the environment. Journal of Vegetation Science 1, 41‐48.
Floret CH, Galan MJ, Lefloc H, Orshan G, Romane F. 1990. Growthforms and phenomorphology traits along an environmental gradient: tools for studying vegetation. Journal of Vegetation Science 1, 71‐80.
Gadrat B. 1999. Shape of plants. Web site.
Godron M. 1971. Test on a probabilistic approach to the ecology of plants. Thèse Doct. Univ. Sci. Sheet language doc. Montpelier. 247 p.
Lemee. 1967. Contribution to the phytosociological knowledge of confined saharo Moroccan associati-ons to therophytes unsalted sandy and silty depressions and men around Beni-Ounif.
Negre R. 1966. Thérophytes. Mem. Soc. Bot. Fr 92‐108.
Orshan G, Montenegro G, Avila G, Aljaro ME, Walckowiak A, Mujica AM. 1984. Plant growth forms of chilean matorral. A mono character growth form Analysis along an altitudinal transect from sea level to 2000, M. ASL. Bull. Soc. Bot. Fr. (Actual. Bot.) 131, 411‐425.
Quezel P, Santa S. 1962.New flora of the Algeria and southern desert regions. 2 flights, volume 1. C.N.R.S Paris.
Quezel P, Santa S. 1963. New flora of Algeria and southern desert regions. 2 flights, volume 2, C.N.R.S. Paris.
Romane F. 1987. Efficiency of the distribution of growth for analysis forms vegetation at the regional level. Thèse Doct. ES. Science. Marseille.